KR20140052403A - Seal strip structure for damper - Google Patents

Abstract

The present invention relates to a seal strip structure of a damper used for a fluid transfer duct. The first feature of the present invention is a damper (M) installed in a duct (D) transferring the fluid to adjust the flow rate of the fluid or block the fluid flow. The damper (M) is formed by installing a frame body (1) formed on the outer part; blades (3) formed in a multi-staged type in the frame body (1) and rotatably opened or closed as rotary shafts (2, 2a) are axially installed on both sides; and a seal strip (6) made of elastomer to be sealed by being overlapped between front ends of the blade (3). The second feature of the present invention is a damper (M) formed by fixing and installing a frame body (1) formed on the outer part; a blade (30) opened or closed while being vertically lifted by a cylinder device (50) in the frame body (1); and a hoof seal (60) made of elastomer having a sealing force between front ends of the frame body (1) and the blade (30). The present invention has an effect of completely blocking the flow of fluid such as waste heat gas in power plants or harmful gas for human bodies with excellent sealing force by forming a seal strip having excellent elasticity and resiliency from elastomer in the blade of the opened or closed damper.

Description

[0001] The present invention relates to a seal strip structure for a damper,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal strip structure of a damper used for coupling to a duct for transferring a fluid, and more particularly to a seal strip structure of a damper, And more particularly, to a seal strip structure of a damper used in combination with a duct for fluid transfer, which is installed in a duct to improve the seal strip structure of the damper so as to control the flow rate of the fluid or completely block the flow of the fluid.

Conventionally, a duct having a large flow amount for transferring a fluid such as a gas is provided with a blade to control the transfer of the fluid.

However, the conventional blade has a disadvantage in that it is leaked without ensuring complete airtightness when shutting off.

Especially, it is very important to make the damper a structure that can completely shut off the airtightness, because it can cause a very fatal loss in case of waste gas or harmful gas to the human body in a power plant.

However, existing dampers do not completely block the fluid flow in the closed state.

The reason for this is that in the case of a structure in which the blades are overlapped with each other, the overlapped portions of the blades are weakly adhered to each other by the concentrated load, and there is a difference in the degree of close contact between the blades, Can not be completely blocked.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method of controlling a flow rate of a fluid, which is installed in a duct for transferring a fluid, And to provide a seal strip structure of a damper used in combination with a fluid transfer duct having excellent sealing force and restoring force so as to completely block fluid flow.

According to a first aspect of the present invention, there is provided a damping apparatus comprising: a damper installed in a duct for conveying a fluid to adjust a flow rate of the fluid or block the flow of the fluid;

Wherein the damper includes a frame body formed on the outer side and a plurality of blades in a multistage manner in the frame body,

An actuator for connecting a link between the rotating shafts and rotating the rotating shaft by rotating the link is installed on one side of the rotating shaft,

Seal strips made of an elastic material are fixedly installed between the front ends of the braids so as to be overlapped and sealed.

The seal strip is fastened to the tip of the braid with bolts, nuts, and packing, and the shape of the seal strip is formed of a triangle, arcuate, oblique, or diamond shape.

According to a second aspect of the present invention, there is provided a damping apparatus comprising: a damper installed in a duct for transferring fluid to adjust a flow rate of a fluid or block a flow of fluid;

Wherein the damper includes a frame body formed on an outer side portion thereof, a braid that is vertically opened and closed while being lifted and lowered by a cylinder device in the frame body,

Wherein the braid is connected to a guide beam connected to a cylinder rod of the cylinder apparatus,

A hoop seal made of an elastic body having a sealing force is fixedly installed between the frame and the tip of the braid.

The hoof seal is fastened with bolts and nuts.

The first aspect of the present invention is as follows. First, a seal strip having excellent elasticity and restoring force as an elastic body is formed on the braid of the damper to be opened and closed. By this sealing force, fluid flow such as waste heat gas or harmful gas to the human body can be perfectly Can be blocked.

Secondly, the seal strip is formed into a shape of a triangular, arcuate, oblique, or rhombic shape, and is formed into a plate shape of an elastic body, so that the sealing force can be increased and an excellent sealing force can be obtained.

Third, the dampers that vertically open and close the braid increase the adhesion force of the hoof seals, which are horseshoe-shaped, to the damper braids, and provide excellent sealing force to ensure perfect fluid flow, such as waste heat gas and harmful gases to the human body. .

Fourth, hoof seals made of horseshoe are made of a plate of elastic body and have excellent restoring force, which makes it easy to open and close the braid.

1 is a schematic view of an example in which a damper according to the present invention is installed in a duct.
Fig. 2 is an overall configuration diagram of a damper in a "seal strip structure of a damper used for coupling to a duct for fluid conveyance" according to the present invention.
3 is a cross-sectional view taken along line AA of Fig. 2 according to the present invention.
Fig. 4 is a left side view of Fig. 2 according to the present invention. Fig.
5 is an enlarged view of a portion "B" in FIG. 3 according to the present invention.
6 is an enlarged view of a portion "C" in FIG. 3 according to the present invention.
7 (a) to 7 (c) are other embodiments of the " seal strip "in the" seal strip structure of the damper used in coupling to the duct for transferring fluid "
Fig. 8 is an explanatory view of opening / closing of a blade by a rotating shaft in a "thread-strip structure of a damper used for coupling to a duct for fluid conveyance" according to the present invention.
FIG. 9 is an overall structural view showing a damper as another embodiment in the "seal strip structure of a damper used for coupling to a duct for fluid conveyance" according to the present invention.
Fig. 10 is a left side view of Fig. 9 according to the present invention. Fig.
Fig. 11 is a right side view of Fig. 9 according to the present invention.
FIG. 12 is a sectional view taken along the line CC of FIG. 9, FIG. 13 is a partially enlarged view of FIG. 12, FIG. 14 is a sectional view taken along line AA in FIG. 9, and FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The terms defined in describing the present invention are defined in consideration of functions and forms in the present invention, and should not be construed as limiting the technical elements of the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the relevant art and are not to be construed as ideal or overly formal in meaning unless expressly defined in the present application .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, a first embodiment for achieving the object of the present invention will be described with reference to Figs. 1 to 8. Fig.

And a damper M installed in the duct D for transferring the fluid to adjust the flow rate of the fluid or block the flow of the fluid. The damper M comprises a frame 1 formed on the outer side, A braid 3 constituted by a plurality of multi-stages in the frame 1 and rotatably opening and closing the rotating shafts 2 and 2a on both sides is provided.

An actuator that connects the link 4 between each of the rotating shafts 2 and operates the link 4 to rotate the rotating shafts 2 and 2a in the normal direction is provided on one side of the rotating shaft 2, ) 5 is installed and configured.

A seal strip (6) made of an elastic material is fixedly installed between the front ends of the braids (3) so as to be overlapped and sealed.

The seal strip 6 is fastened and fixed to the tip of the braid 3 with bolts 7, nuts 8, washers 9 and packing 10 and its shape is shown in Figs. 5 to 7 As shown in c), it is composed of triangle, arcs, oblique lines, and rhombus.

When the actuator 5 is driven as described above, the rotating shaft 2 (2a) is rotated through the link 4 in the normal direction in the range of 90 degrees as shown in FIG. 8 to rotate the blade 3 Thereby controlling the flow of the fluid passing through the duct (D) or blocking the flow of the fluid.

5 to 7 (c), the tip end of the braid 3, as shown in Figs. 5 to 7C, is provided to maintain a complete sealing force when the flow of the fluid passing through the duct D is blocked by the braid 3, The seal strips 6 are made of an elastic material so as to be overlapped with each other and sealed.

That is, the seal strip 6 made of the elastic body is in the form of a plate, and the seal strip 6 is constructed so as to overlap each other between the braids 3 to increase the adhesion force by the elastic force, .

Fig. 5 is an enlarged view of "B" part in Fig. 3, showing the coupling relationship between the upper and lower braids 3, Fig. 6 is an enlarged view of part " C " ). ≪ / RTI >

The seal strip 6 has a structure of triangular, arcuate, oblique and rhombic shape as shown in Figs. 5 and 7 (a) to 7 (c) Lt; / RTI >

Therefore, it is possible to completely block the flow of fluid such as waste heat gas or harmful gas to the human body in a power plant or the like.

Next, a second embodiment of the present invention will be described with reference to FIGS. 1 and 9 to 15 as follows.

The damper (M) is installed in a duct (D) for transferring a fluid and adjusts the flow rate of the fluid or blocks the flow of the fluid. The damper (M) has a frame (1) (30) which is vertically opened and closed by the cylinder device (50) while vertically moving in the casing (1).

The braid 30 is connected to a guide beam 40 connected to the cylinder rod 51 of the cylinder device 50.

A horseshoe-shaped hoof seal 60 made of an elastic material having a sealing force is fixedly installed on both sides between the frame 1 and the tip of the braid 30.

The hoof seal 60 is made of an elastic plate and fastened to the support 100 by bolts 70 and nuts 80.

In the present invention having the above-described structure, when the cylinder device 50 is driven, the blade 30 is vertically lifted and lowered by the guide beam 40 connected to the cylinder rod 51 to open and close the blade 30, Regulate the flow or block the flow of fluid.

12 to 15, in order to maintain a complete sealing force when the flow of the fluid passing through the duct D is blocked by the braid 30, the horseshoe- The sealing force of the hoop seal 60 can be increased and the sealing force can be improved.

Therefore, it is possible to completely block the flow of fluid such as waste heat gas or harmful gas to the human body in a power plant or the like.

Further, since the horseshoe-shaped hoof seal 60 is made of an elastic body, the hoof seals 60 are excellent in restoring force, thereby facilitating opening and closing of the braid 30.

12 is a sectional view taken along the line C-C in Fig. 9, Fig. 13 is a partially enlarged view of Fig. 12, Fig. 14 is a sectional view taken along the line A-A in Fig. 9 and Fig. 15 is a sectional view taken along the line B-B in Fig.

D: Duct M: Damper
1: frame 2, 2a: rotating shaft
3,30: Braid 4: Link
5: Actuator 6: Thread strip
7,70: Bolts 8,80: Nuts
9: Washer 10: Packing
40: guide beam 50: cylinder device
51: cylinder rod 60:
100: Support

Claims (8)

A damper (M) installed in a duct (D) for conveying a fluid to adjust a flow rate of the fluid or block the flow of the fluid,
The damper M comprises a frame 1 formed on the outer side of the frame 1 and a braid 3 formed in the frame 1 so as to be rotatably opened and closed by a plurality of rotary shafts 2,
And a seal strip (6) made of an elastic material is fixedly installed between the tip ends of the braid (3) so as to be hermetically sealed. The seal strip structure of claim 1, wherein the seal strip (6) is formed of any one of triangular, arcuate, oblique, and rhombic. The seal strip structure according to any one of claims 1 to 5, wherein the seal strip (6) is plate-shaped and made of an elastic metal. The seal strip according to claim 1, characterized in that the seal strip (6) is constituted by fastening and fastening the tip end of the braid (3) with a bolt (7), a nut (8), a washer (9) A thread strip structure of a damper used for coupling to a fluid transfer duct. A damper (M) installed in a duct (D) for conveying a fluid to adjust a flow rate of the fluid or block the flow of the fluid,
The damper M includes a frame body 1 formed on an outer side thereof, a braid 30 which is vertically opened and closed by the cylinder device 50 while being vertically moved in the frame body 1,
Characterized in that a hoof seal (60) made of an elastic material having a sealing force is fixedly installed on both sides between the frame (1) and the front end of the braid (30) Thread Strip Structure.  6. The seal strip structure of claim 5, wherein the hoof seal (60) is horseshoe-shaped.  6. The seal strip structure of claim 5, wherein the hoof seal (60) is plate-shaped and is made of an elastomeric metal.  6. A method according to claim 5, characterized in that the hoof seal (60) is fastened to the support (100) by bolts (70) and nuts (80) A thread strip structure of a damper used for coupling to a transfer duct.

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